NoiseLevel Analyzer is a web-based tool that measures and visualizes environmental sound levels in real time using your device’s microphone.
It helps users analyze ambient noise, visualize decibel intensity, and assess sound pollution interactively.
- 🎧 Real-Time Sound Monitoring – Uses Web Audio API to capture and analyze microphone input
- 📊 Dynamic Decibel Meter – Displays live dB levels with smooth animations
- 🧠 Noise Classification – Categorizes sound intensity (Quiet, Moderate, Loud, Dangerous)
- 📈 Data Visualization – Plots sound intensity over time using Chart.js
- 💾 Offline Support – Works offline with cached resources
- 📱 Responsive Design – Optimized for both desktop and mobile
- The app accesses your microphone using the Web Audio API.
- It captures audio amplitude and converts it into decibel levels (dB).
- The live noise level is displayed with color-coded feedback.
- Data is visualized in a real-time graph for trend analysis.
- Optionally logs sound data for export or long-term study.
| Layer | Technology |
|---|---|
| Frontend | HTML5, CSS3, JavaScript (Vanilla or React) |
| Audio Processing | Web Audio API |
| Charts | Chart.js / D3.js |
| Styling | Tailwind CSS / Bootstrap |
| Backend (Optional) | Node.js + Express |
| Hosting | GitHub Pages / Netlify / Vercel |
git clone https://github.com/yourusername/noiselevel-analyzer.git
cd noiselevel-analyzer
2️⃣ Run Locally
Open index.html in your browser
OR use a local server:
bash
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npx live-server
3️⃣ Allow Microphone Access
Grant microphone permission when prompted to start noise detection.
📊 Example Output
Range Noise Level Indicator
0–40 dB Quiet 🟢
41–70 dB Moderate 🟡
71+ dB Loud 🔴
The app also provides a real-time graph of sound intensity over time.
💡 Use Cases
Measuring environmental noise around you
Testing sound insulation effectiveness
Educational use for sound and wave experiments
IoT and Smart City noise tracking dashboards
🧩 Future Enhancements
📈 Historical data logging and export
🧠 AI-based sound classification (traffic, music, speech)
📱 PWA support for Android
🌍 Global community noise map integration
🧑💻 Contributing
Pull requests are welcome!
For major changes, please open an issue first to discuss what you’d like to change.
📜 License
This project is licensed under the MIT License — see the LICENSE file for details.
⭐ Show your support
If you like this project, consider giving it a star 🌟 on GitHub!
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Would you like me to tailor this README for **a React version** (with `App.js`, `us